"Gu Xi" is the name of seventy years old in China since ancient times. It originated from Two Poems of Qujiang written by Du Fu, a great poet in Tang Dynasty. Du Fu chanted: "Life is seventy years old and rare." 1200 years ago, Du Fu lamented that life was too short to live to 70 years old, which was very rare in ancient times.

The ancient people's names of all ages:

Children: infants under one year old; 2~3 years old-childhood; Girls are 7 years old-years old; The boy is 8 years old-the year of aging; Youth is generally called-total angle; 10 years old-Huangkou; 13~ 15 years old-the year of dancing spoon; 15~20 years old-the year of dancing elephants;

Female: 12 years old-year of Chai Jin; 13 years old-cardamom years old, 15 years old-and the year of death; 16 years old-broken melon years, jasper years; 20 years old-Tao Li Nianhua; 24-year-old Hua Xinnian; After the age of 30-a half-aged Xu Niang.

Male: 20 years old-weak crown; 30 years old-the year of standing; 40 years old-the year of no doubt, the year of strength; 50 years old-more than half a century, the year of knowing right and wrong, the year of knowing life, the year of loving your husband, and the year of Dayan; 60 years old-the year of the flower, the year of the flat head, the year of the ear and the eye, the year of Zhang Xiang; 70 years old-ancient and rare, the year of the country, the year of events, and the year of politics; 80 years old-the year of the staff; 80~90 years old-octogenarians; 90 years old; 100 years old-Qiyi.